Maintenance
How long does a water heater last?
Tank and tankless water heaters age differently. Here’s what to expect and how to spot the warning signs.
DriveGuard Home Warranty · November 3, 2026 · 3 min read
Most tank water heaters last 8–12 years. Tankless units often last 15–20 years with regular maintenance.
Warning signs
- Rusty or discolored hot water
- Rumbling or popping sounds from the tank
- Water pooling around the base
- Hot water that runs out faster than it used to
Extending its life
Flush the tank once a year to remove sediment, and check the pressure-relief valve. A plumber can inspect the anode rod, which protects the tank from corrosion.
When it fails
Water heaters are covered on every DriveGuard plan, up to the plan’s limits.
Protect your home from surprise repair bills
DriveGuard plans cover systems and appliances for one flat service fee.
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